Electropneumatic pipe-organ action



June 1 1926. 1,587,411

R. R. PERRY ELECTROPNEUMATIC PIPE ORGAN ACTION Filed Jan. 26, 1923 4Sheets-Sheet 1 3 1 d 2 40 2 M i, 7

4 WM 7 M 59 25' 1. Bay 15. Perry 4;? 2 a i June 1 1926.

R. R. PERRY ELECTROPNEUMATIC PIPE ORGAN ACTION Filed Jan. 26 1923 4Sheets-Sheet 2 195E Ferry 21F June 1 1926.

R. R. PERRY ELECTROPNEUMATIC PIPE ORGAN ACTION Filed Jan. 26. 1923 4Sheets-Sbeet 5 E IILEE GUM/"M3 June 1 1926; 1,587,41I

R. R. PERRY ELECTROPNEUMATIC PIPE ORGAN ACTION Filed Jan. 26, 1923 I 4Sheets-Sheet 4 @wuen vbc' z 150g 12. Perry 5 WIZQWW9 M parts and inproviding these parts in small Patented June 1, 1926.

ROY n. PERRY, or MOBILE, ALABAIiIAQASSIGNGR. wo rorrmm LE GEAR, OFMOBILE,

- "ALABAMA.

'ELEC'IDBOPNEUJMZA'IIC FIFE-ORGAN ACT-ION.

-*App1icati0n filed January'26, 1923. "Seria1"No.-r'615,0S9.

The present invention relates to improvements in electro-pneumaticpipeorgan actions in which the conversion of'the old tracker organ isaccomplished 'at small cost an'dby a simple and compact mechanismwherein substantially instantaneous valve movement is had through theuse of considerably shorter wind passages.

The invention consists in the arrangement, combination and grouping of 1the units that may be individually removed from the organ Withoutdisturbing the companion mechanisms to'enable the'malringof adjustmentsand the replacement and repair ot parts quickly, conveniently andinexpen'sively.

A further object of the invention resides in the provision of animproved electr0- magnet in Which'the core of themagnet is made hollowfor the passage ot'the "Wind to thereby keep themagnet cools'and toavoid the necessity for providing certain awkward instructionsheretofore generally used.

lVith the foregoingiand other objects in view-the invention Will be'more fully described hereinafter, and Will be more particularly pointedout in the claims appended hereto.

In the drawings, wherein like symbols refer to like or correspondinglparts throughout the several views,

Figure 1 shows'a verticalsection, With parts in elevation, of animproved organ action constructed accordin'g to the present invention.

Figure is also a'vertical section taken on an enlarged scale on the line22 in Figure 1 and With the tracker Valve chest removed.

Figure 8 is a view similar to Figure'l but illustrating a doublearrangemenhand is a stop action for tracker organ.

Figure 4 is an enlarged fragmentary sectional view through the magnetand asso- 'ciated parts.

Figure 5 a horizontal section taken on the line 5-5 in Figure l.

Figure 6 is'a view similar to Figure 1 showing the armature closedagainst the end of the core.

"ihiejure 2 is a vertical: section taken on the line PM? in flliigurehFigure 8 is'a horizontal fragmentary sec- "tiontalren through the doublevalve and -vvind pouch, and I Figure 9 isa perspective View ofthe'armature valve and its stem.

Referring more particularly to tie draw ings 1 designatesgenerally thetracker valve chest having the bottom board '2, the rear board 3 and thetrout board a being removable through the screws or other tastenings Thetracker valve chest is closed by end 'WZIllS in a well-known manner butas this construction is usual in tracker organs, it v has not beenillustrated particularly.

'lVithin the valve chestare hinged valves e -supplied inappropriatenumbert'or con- -'trolling the passages 7 in the channelboard S and in the pipe board9. Springs 10 are employed to hold thevalves 6 closed.

In accordance With the present invention the parts beneath this trackervalve chest 1 may be removedand replaced by the mechanismdescribedasfollows :'The pneumatic chest 11 is situated beneath thetracker valve chest 1 and is secured in any appropriate manner Withinthe organ action. The front board-12 and the rear board 13 of thepneumaticchest 11 are removably attached as by the screws or otherappropriate fastenings -14L and 15 to the topboard' 16andthe bottomboard 17 respectively of said pneumatic chest. This chest is kept under,pressure and contains number ot'pneumatics 18 in accordance-With therange of tie organ or console. A tracker-valveivire 19 is coupledbetween each valve '6 and-a corresponding pneumatic 18, the-attachmentpreferably being by the use of screWeyes QOand 21 Which are threadeddirectly-into the wooden material of which the valve and top plate ofthe "pneumatics are formed. The bottom plate of the pneumatic is alsogenerallyot Wood "and the flexible part may be made of suit able leatheror other I fabric and attached betweenthe tWo plates as by gluing or anyother appropriate manner.

The'interior of eachpneumatic 18 is in communication With 2L valve chest22 disposed ben'eaththe bottom boards 17 of the pneumatic chest. Thisvalve chest "comprises a front board 23 and a rear board 24: which are'erected 'at opposite edgesot the bottom W board: 25. End, Walls 26 and27 are shown in I 2 515 theses.portions attire the board valve chest andsimilar end walls 28 and 29 are shown for the pneumatic chest. The wallsare preferably attached or joined together at suitable places by screwsor other desired tastenings which admit of the ready dismemberment otthe chest. In the bottom boards 17 of the pneumatic chest 11 are numbersof openings or perforations 30 which communicate with the channels orpassages 31 made vertically through the up per portion of the frontboards 23. These passages 31 communicate at their lower ends withtransverse ports 32 vhich open through and place the channels 31 incommunication either with the interior of the valve chest or the outsideatmosphere as controlled by the double valve arrangement shown. lhisdouble valve arrangement comprises a pair of valves and 8st mounted upona valve stem or wire which passes axially tln'ough the port 32, lying inahorizontal direction and having free play through the guide 35 which issuspended from the board 36. This board 36 is extended upon oppositesides of the board 23 and screws or other fastenings are provided tohold this board to the bottom boards 17 ot the pneumatic chest, ad anappropriate block 3? being interposed between the board 36 and thebottom boards 17, the block 37 liar-ring screws or other tastenings 38by which it is attached to the front board 23 from the inside of thevalve chest. Screws or other tastenmgs 39 pass upwardly through theboard 36, block 3'? and take into the bottom board 17.

The board 36 at its outer end provides a support for the pouch or pocketboard 40 having the hollow pockets e1 closed by the leather or otherflexible diaphragm 42 which are glued or otherwise secured to theinterior face of the board 40. llhe leather or other button surroundsthe valve stem 35 and prevents the tearing out of the fabric or leathermaterial of which the diaphragm is made.

By reference to Figure 8 a view of the construction of the valves and St will be rendered more apparent. Each valve preterably consists of aseating disc 46 of leather, although other material may be used, a second intern'iediate disc d5 of felt or the like compressibl material anda backing disc 1-6, such for instance as a fiber disc possessingrigidity and durability. These two valves are secured against relativemovement upon the stem and they are adapted to alternately close againstopposite mouths of the port 32 so that when one valve is closed theother is open. In this connection compare the positions in Figures 1 and8.

Now the interiors of the pouches 41 are in connection through tubes orwind conductors ll with chambers 48 in the base portion of the frontboard 23. A vent tube 4:9 is inserted through this portion of the frontboard and is arranged coarial with the hollow core 50 of aneleetro-magnet. See in this connection Figure 6, wherein the wind ingsof the magnet are indicated at at as being confined by fiber heads 52and the former of which lies agains a brass plate titted against theinside face of the front board 23 and forming a support tor the core 50of the magnet which projects into the lower portion of the chamber. Ametal disc 55 is positioned to vi rate between tlu inner ends ot thevent tube ll) and the llt lflt't end of the core 50 and the disc const.arn'iature a'tracted to the core when e magnet is energized and it thusterms a valve for shutting oil the supply of wind i'rom the valve chestto the chamber or for closing the vent 41:9. its shown to advai'itage inFigure 9, the valve or arn'iature disc 55 carries a stem 56 oi": wood orother suitable material to one end of which it is ailiXe-fl as by anail, screw or other fastening The stem is of the term ot a e ror viewedfrom the end thereof or is providol with flanges or circumferentialchannels to permit the tree passage of the air throi gh the hollow corecore 50 are indicated at and 5i) and ther-Je extend to the console toroperation through the keys in a well known manner.

It will be noted in connection with the electro-inagnetconstructionthat, by the employment oi? the hollow core 50, a pas a. is provideddirectly in the structure oi the magnet allowing he wind to therethrough and to have a cooling etl'ect on the At the same time the magnetis restricted to fewer parts and it is no longer necessary to drillthree or more small holes through the brass plat 5-4- or magnet base toallow the wind to enter the pouch.

It will be "further appreciated that the organized device is e-'tr unelySlmlllc in term and comp being conslrimted in sections as shown inFigure 2. Each of these sections composed o'l six mcumatics. sir; valvesand six magnets and the sections or units thus built up are m unted sideby side in the organ action or frame and they may be removed iudivduallyfrom the organ without requiring the disassembly (it other parts. Thesections or units are very small and mav be readily held in the hand athe walls are so constriuitcc and the parts so relatively arranged and(llS-dJFSCIl that access may be easily had to the u e lo! and.

cd, or

. t parts may be removed and rep ac paired without the requirement t rtearing down the whole section. It will moreover he understood by thoseskilled in the art that the device is provided to take the place of theold heavy tracker key action without liilVl'? to discard the trackervalve and valve chest which is the most expensive part ot the or gun tobuild. T he present innprovenieut therefore entails a large savingan'denables the conversion to be accomplished very much more I quickly.

The HDPIOVQClfiCtlOH as hereindescribed is especially designed for theold tracker action organ, but it can be used-in'm'aking an'electro-pneumatic action organ out'oit a'tubularpneumatic action organ.It can also 3e used m the-buildlng of any modern electro-pneum'atlcorgan manufactured today and possesses many features of simplicity inthe grouping ol"'1nechan1cal and material parts that would recommend iteither in the form shown in the drawings, or in slight variationsthereof, for use in numerous 1nstances where older types of organ are tobe converted or where new organs are to be built. The improved actioncan be manuiactu'red Wltll less material, less machinery andconsequently at a less cost than other RCtlOllSy and practically everymeans forecljustment is accessible from Y the exterior.

Now in the'operation of the action, the

"electro--inagnets are energized from the con sole in amanner wellknown.The closing of'the circuit --'through the 00118 51 of anelectro-n'iagnet causes the coret-O-to become magnetized and to attractthe disc 55. The discwill thus becomeclosed against the adjacent endofthe core as shown in' Figure 6, the magnetic attractionbeing in excessof the wind pressure within the valve chest 22. The'wind is thus cut oilfrom the chamber 18 and use result also from the pouch orpocket M41 andmoreover this pouch is placed'in communication"with the outsideatmosphere throughthe vent tube 49 whichhas become nncovered by themovement of the disc 59 against themagnet core. There is always auressu're-wlthln the valve chest 22' bea'rin l e u amst-the inner faceof the valve et'and when the pressure within the pouch or pocket 411 isthus allowed to fall, the'valve chest pressure on t-he-valve'34 willpromptly close this valve against 'the inner mouth of the port 82causing the companion valve 33 to be opened or moved to the positionshown in Figure 8. The wind within the corresponding pneumatic 18 in thepneumatic chest 11 above will thus have a means of escape to theatmosphere down through the channel 31 and through the opened valve Thepneumatic pressure within the chest 11 will act upon the pneumatic 18 toeffect a quick collapse of the same, and collapsing, the pneumatic 18will exert a downward pull upon the tracker valve wire 19 to cause anopening of the connected tracker valve chest allowing the wind withinthe tracker valve chest 1 to get into the passage 7 and to the pipecorresponding with the key at the console.

When the key is released the circuit through the electro-magnet will beinterrupted or discontinued and the disc 55, being no 65and' 66.

-the chambers 65 and 66. nets and 'ftl are carried within the valvelonger held by strong magnetic attraction to the end of thehollow core50 will beblown by the actlon or the wind Within the valve chest 22against the inner end oi the vent of the port 32 thus cutting otl escapeoit'the air from the pneumatic 18 to the atmosphere.

The inner valveil l is open placing the. pres- "sure within the valvechest 22 in connection with the pneumatic 18 and this pressure willinflate the pneumatic, being 111 excess of the pressure in the pneumaticchest 11. The

"tracker valrewire 19'will be released and "the'pressure within thetracker valve chest and the cooperation of the spring 10 will re storethe tracker valve 6 to a closed position.

The action will besubstantially instantaneous and the response at thepipes will be qui'ckerbecause ot the relatively short distances traveledby the wind.

N ow referring more particularly to Fig uregyaslight modificationisherein shown in which the valve chest 60 is of increased size and hasfront and back walls 61 and 62 which are constructed substantially alikeboth having ports 68and 64 and chambers The two valves 6'7 and 68control the port 63 in the wall 61; while simi lar valves 69 and 70operate in conjunction "with" the port 6 1 in the opposite wall 62.Pouches or pockets 71 and 72 are provided 111 COHJUDOUOH with thevalves: and communicate by tubes 73 and 7 1 respectively with Twoelcctro magchest 60 and they operate to control the action of the valvesand the supply of air or "its release 'to and from the pouches in amanner already described. The top board 77' is provided witlracontinuous channel 78 communicating at opposite ends with the channels79 and 80 in the upper parts of the walls 61 and 62. A. partition 81extends down into the center of the channel 78 in order to divide thechannel and to lead the air separately from opposite sides to pneumatics82 and 83 which are disposed on end and are connected by wooden brace 81 so hat when one pneumatic collapses the other expands. In other wordsthe valves 67 and 68 control a supply of air to the pneumatic 82 and therelease of air therefrom and in a similar manner the opposite valves 69and 70 having like effect on the other pneumatic 83. The pneumatic 82 iscoupled to an arm 85 pivoted to the lower end of the lever 86 fulcrumedintermediately upon a bracket 8'? and extending up and throu h a tonslide 88 which moves Within the pipe board and has .t oi? stop tab, thecircuit is closed ;f tie stop-oii magnet Te. This attracts its armaturedisc and l to the 69 and the 'it a collapsing of valve '4 opening theaic e ie other he id the 1: slot is de and consequently the pouch 7i anand the valve llo oi" is opc= pneuu at event of 'Lft l the level shiftsthe so is "c rcgisti' between the opening )1 )e passage 90. The

o and the deenen 'iil (:2 use the pneu Ll the opposite pneuinstalled atthe end of each. ches; swell, cat Ol choir. is many v-roeden OE. metalhi'aces as may be iu'ipi'oved action ill he l 0'? ts" i'eipiii'cd areused to support the action. The acion is designed to ht hetiveen themain chest support faces and can 0 just n21" ncatn tracker organ ctionhe tl e full length of wnicn it is designed.

' that various changes and a in th. details of an Bimin nges andn'iodiiicat-ions being re by the scope oi the following I claim I 1. Anelecti'o-pne'unatic organ action c01n prising in conii'iination with avalve chest and vevcs ther in, a pneumatic chest separate iii'oni thevalve chest, pneuniatics in the pneumatic chest, :onnccions between saidpneunuztics and the valves, a second valve chest independent of saidfirst valve chest and said pneumatic chest, means for ie-niovahlysecuring said second valve chest to a vvz ll of said pneumatic chest,said pneumatic ri st having Wind passages opening ei'cin forcommunication with in the pnenn atic chest and voue, i one side ot thevalve hoard valve chest and through the other he valve hoaid into thea'niosphei'e, ed on the valve board for altnnately clo. 9 said airpassage at inposite sides of the valve board and llit'vlilg t stein, apouch hoard lnace mounted on the valve heard, a pouch n'iounted on thebrace and connected to said duplex valve stem, said valve board having;a second air passage therein opening through the opposite side thereofand coiunuinicali with the pouch, and an Ol0Ctl'O-Hlfl R6tlC valvecarried by the E'J and lot controlling said second an passage to inflateand exhaust the pouch and operate the duplex valve.

